Catalysts for natural gas processes
AssigneeSiluria Technologies, Inc.
InventorsErik M. Freer, Wayne P. Schammel, Fabio R. Zurcher, Joel M. Cizeron, Jin Ki Hong, Anja Rumplecker, Sam Maurer, Joel Gamoras, Daniel Rosenberg, Erik C. Scher
Life of this patent
Estimating the term…
Abstract
Catalysts, catalytic forms and formulations, and catalytic methods are provided. The catalysts and catalytic forms and formulations are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane. Related methods for use and manufacture of the same are also disclosed.
Claims25
1-38. (canceled)
A catalytic material comprising:
- (a) an OCM active catalyst;
- and
- (b) a second catalyst comprising the following formula:
- Ln1aLn2bOx(OH)y
- wherein:
- Ln1 and Ln2 are each independently different lanthanide elements;
- O is oxygen;
- OH is hydroxy;
- a is a number greater than 0;
- and
- b, x and y are each independently numbers of 0 or greater, provided that at least one of x or y is greater than 0, and
- wherein the catalytic material comprises a methane conversion of greater than 20% and a C2 selectivity of greater than 50% when the catalytic material is employed as a heterogeneous catalyst in the oxidative coupling of methane at a temperatures ranging from about 550° C. to about 750° C.
53-63. (canceled)
66-90. (canceled)
A formed catalytic material for performing oxidative coupling of methane at linear velocities ranging from about 0.1 m/s to about 10 m/s, the catalytic material comprising:
- a) a catalyst
- b) a non-tessellating shape;
- c) a binder or diluent;
- d) a crush strength of greater than about 2 N/mm after exposure to air comprising water at temperatures between about 20° C. and 30° C. for greater than 50 hours;
- and
- d) a bed void fraction of greater than 0.3.
92-175. (canceled)
A formed catalytic material for performing oxidative coupling of methane at linear velocities ranging from about 0.1 m/s to about 10 m/s, the catalytic material comprising (a) a catalyst and a binder or diluent;
- (b) a non-tessellating shape;
- and (c) at least one rounded or chamfered edge, at least one convex surface or both, wherein the catalytic material comprises a methane conversion of greater than 20% and a C2 selectivity of greater than 50% when the catalytic material is employed as a heterogeneous catalyst in the oxidative coupling of methane at a temperatures ranging from about 550° C. to about 750° C.
177-189. (canceled)
Dependencies are inferred from the claim text.